21312376

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{4523}}^1$

素因数の和:4579

約数の個数: 32

約数和(自身を含む): 43430400

約数和(自身を除く): 22118024

約数列:

[1, 2, 4, 8, 19, 31, 38, 62, 76, 124, 152, 248, 589, 1178, 2356, 4523, 4712, 9046, 18092, 36184, 85937, 140213, 171874, 280426, 343748, 560852, 687496, 1121704, 2664047, 5328094, 10656188, 21312376]

約数ペア:

[(1, 21312376), (2, 10656188), (4, 5328094), (8, 2664047), (19, 1121704), (31, 687496), (38, 560852), (62, 343748), (76, 280426), (124, 171874), (152, 140213), (248, 85937), (589, 36184), (1178, 18092), (2356, 9046), (4523, 4712)]